Apparatus for delivering measured quantities of liquids



Aug. 19, 1930.

M. E. GUERMONT APPARATUS FOR DELIVERI NG MEASURED QUANTITIES OF LIQUIIB Filed June 7, 1929 Patented Aug. 19, 1930 UNITED STATES PATENT OFFICE MIGUEL'ENRIQUE GUERMONT, OF LONDON, ENGLAND, ASSIGNOR TO S; I. A. M. LIMITED, OF LONDON, ENGLAND, A CORPORATION OF GREAT BRITAIN APPARATUS FOR DELIVERING MEASURED QUANTITIES OF LIQUIDS Application filed June 7, 1929, Serial No; 369,156, andin Great Britain J une 28, 1928.

; The present invention relates to improvements in those discharge mechanisms for petrol pumps and like devices which, are provided With a fixed or movable overflow pipe placed inside a liquid container or reservoir, in which it is desired to establish an. exact level of the liquid corresponding to a determined quantity of the liquid to be discharged from the said container and particularly the class of mechanism in such a device in which the delivery valve is locked when the valve isv closed and only unlocked by the overflow of the liquid through the overflow pipe when more than the predetermined quantity of liquid has been measured into theic'ontainer thus ensuring that short measure cannot begiven,

Bucket valves controlling lock bars co acting spring controlled release bars have been suggested in suoh apump. V

The present invention provides in I this class of discharge .mechanismi for .petrol pumps a butterfly control valve which is mounted in the overflow pipe and co-acts with a trip adapted to release a stopwhen the liquid overflowsinto-the pipe-said stop engaging with a shoulder on a member connected to the operatingmechanism ofthe discharge valve when the stopis locked by the tripand being clearof said shoulder when the stop is released by the trip and moved to theunlocked position; i a

A mechanism designed with this object in view is illustrated byway ofexample inthe accompanying drawings, inwhich Figure 1 shows adiagrammatic v ew of the mechanism with the control valve in theoverflow pipe in the-closed position and the dischargevalve locked, and a v c Figures 2 and 3. show detail v ews of two positions; ofian inclined member" ntegral with a slidingrod connected to the delivery handle and a stop co-acting with said inclined member projecting-from a spring controlled rod adapted trol valve. 7 I r I In the mechanism shown in the drawings, a butterfly valve l is mounted inthe overflow pipe 2 of the liquid container 3, the mouth ofw-hich pipe is set in the container. to draw ofl anyliquid abovesucha .level as to'give tobe released by the conthe desired measure of liquid when the delivery valve is opened. The valve 1 is integral with the pivoted arm 4 which arm is provided with an adjustable counterweight 5 and with a trip 6 shown in engagement with the lug 7 on the releasing and locking rod 8. This rod is adapted to slide in the supportingguide 16 and is controlled by the spring 29 tending to move said rod to the right when the trip 6 on the valve. arm 4 is moved out of engagement with the lug 7 thus moving a stop 9 laterally projecting from the said rod out of engagement with a shoulder 10 on a vertical rod 11 connected by the pin 12 with the handle 13 adapted to operate the discharge valve 20 of the container 3; The shoulder 10 is integralwith an inclinedmember 15. When the rod 8 is released it is moved by its controlling spring29 to a position in which the stop 9 is to the. right ofthe lower edge of the inclined member and the lug 17 at the end of said rod is inengagement with the compression spring 18, When the stop'9 is out of register with the shoulder 10 the operator can pull down the handle 13 against the influence of the spring 19 if such a springis employed and thus open the discharge valve 20 of the container 3. v The downward movement of. the handle. 13 to open the delivery valve 'at once brings the'position of the inclined member15 in' relation to the stop 9 tothat shown in'Figure 2 and the continued downward movement of the inclined member moves said pass over the upper edge of the inclined-member 15 the rod 8 is moved to the left by the compression spring 18 to a position in which the stop is infront of the inner surface of the inclined plate15. The upward movement of the delivery handle 13 to close the delivery valve after the desiredoqua-ntityof liquid has been delivered to the consumer from the containeratfonce brings the position of the inclined member 15 in relation to the stop 9 to that shown-in Figure '3 and the continued upward movement of the delivery handle moves the stop 9 and with it the carrying rod aw theleft until the parts mat the position shown in Figure 1 when the inclined surfaces of the lug 7 at the free end of the carrymg rod'Band the tri 6 on the weighted valve arm 4 5 g o and tri rides over the lug 7 and if t 1 essee n 53 under the shoulder 10 on the veitieah-oel r ei he eele wselee 10 T QiMm 7 t LA discharge anism ion petrol p s and fiefivieeemprisiug tion a liquid measuring container, a (118- mar e vaifiiia i8? mine! and "operat- I bani {therefor an overflow pipe w an wa ped ei v #fets'ei ifitdsttid container, a

be moved clear of said shoulder to release the operating mechanism of the discharge valve when said stop is released by the trip, an inclined returnin member integral with said shoulder adapte to engage with the stop when are letter is released and moved out of engagement "with the shmfider and a comspring adapted to be engaged by the stop when the latter is moved outwards bythe inclined member'oh the opening movement of the discharge valve mechanism.

'4. A dischalge "mwl'mniem v for petrol pumps and like devices comprising in combiniflitin it liquid moasuringcon'tainer, a discharge valve for said container and operatinig meehanism therefon-im overflow pipe w hin said container adapted to draw the eicess liquid fed ihto said container, a bnttdeiflycontrel minimum in said overflow "pipe, n pivoted am integral with said I5 valve carrying an adiust'able counter-weight, Mei projeeti from said arm adapted ft'e be it Wit said arm-by said lmttei 'fi valve the liquid overflows into sai pipe, a mo v'aibie member connected to the in operating mechanism of the discharge valve,

a shoiilderon'said mixer and a s adapted to register with' the shoulder w en said stop bfloeked by the trip to be moved eiear *e'fs'aid shoulder to 'release the opemti ingimeehanism df' the aischarge Velma when fite'rpisreleasedby meimp. e r e 5. Q.- *msharge" mehanism m W1 pumps and like devices dempfisingiueonrbi xieti n a' riquid measuring coneme'r, a: lie ri emvalve for *saiweofiteinermnd o eras in thei efenmn Fuel-flow pipe wam saideofimmer ada ter! 00 m of! e the Hqeid ifed i'ntoeaiel container, s h

bfittei'flfywrtrethwemounted anemia-em- "for,

adiglted to register with Mae shoulder when slai se "is loeked wewri p md to-be moved memes 'to l eledse'the ogleratin- 'mechanism efthe *djsehaege valwe h w mechanism therefem an=overfl ow np' pe i'en w insaidcontai-ner eela dwdm mo tke eitcess'liquid fedi flto saideontainerpa butrem emorvslwemwmetin-seaw edpre,a tripafiapted flo beweteeted by'said utterfly valve when the liquid oveenm into ka said pipe; a1 mevable member connected to the operating of the discharge verve, =a shouldered said member and re spring eentrelied' "bar ow-13in; a-literally pra m' m ea wmw m shoulder when said stop is locked by the trip and to be moved clear of said shoulder to release the operating mechanism of the discharge valve when said stop is released by the trip.

7. A discharge mechanism for petrol pumps and like devices comprising in combination a liquid measuring container, a discharge valve for said container and operating mechanism therefor, an overflow pipe within said container adapted to draw off the excess liquid fed into said container, a butterfly control valve mounted in said overflow pipe, a pivoted arm integral with said valve carrying an adjustable counter-weight, a trip projecting from said arm adapted to be actuated with said arm by said butterfly valve when the liquid overflows into said pipe, a vertical rod connected to the operating mechanism of the discharge valve, a shoulder v on said rod and a spring controlled bar carrying a laterally projecting stop adapted to register with the shoulder when said stop is locked by the trip and to be moved clear of said shoulder to release the operating mechanism of the discharge valve when said stop is released by the trip.

8. A discharge mechanism for petrol f pumps and like devices comprising in combination a liquid measuring container, a discharge valve for said container and operating mechanism therefor, an overflow pipe within said container adapted todraw off the excess liquid fed into said container, a butterfly control valve mounted in said overflow pipe, a trip adapted to be actuated by said butterfly valvewhen the liquid overflows into said pipe, a movable member connected to the operating mechanism of the discharge valve, a shoulder on said member, a stop adapted to register with the shoulder when T said stop is locked b the trip and to be moved clear of said s oulder to release the operating mechanism of the discharge valve when said stop is released by the trip, an inclined returning member integral with said shoulder adapted to engage with the stop when the latter is released and moved out of engagement with the shoulder and a compression spring positioned to be engaged by the stop when the latter is moved outwards by the outer surface of the inclined member on the opening movement of the discharge valve mechanism and adapted to return the stop to a position to be engaged by the inner surface of the inclined member on the closing movement of the said discharge valve mechanism.

In testimony whereof I have signed my name to this specification,

MIGUEL ENRIQUE' GUERMONT. 

